804,623 METHACRYLIC Methacrylic acid : CAS No. 79-41-4 : March 1996 / [ECETOC [European Centre for Ecotoxicology and Toxicology of Chemicals]. - Brussels : ECETOC, 1996. -[10], 53 s. ) 30 cm (Joint Assessment of Commodity Chemicals / ECETOC, ISSN 0773-6339-35 ; nr 35)